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//Example 3.4.2 Page 58
//Non-Linear Dynamics and Chaos First Indian Edition Print 2007
//Steven H.Strogatz
clear;
clc;
close;
set(gca(),"auto_clear","on") //hold off
for(r=-1:0.5:1)
x = -3:0.1:3;
V = -0.5*r*(x^2)+0.25*(x^4);
set(gca(),"auto_clear","off") //hold on
xtitle("Potential Diagram","X-Axis","Y-Axis")
plot2d(x,V,style=-4)
figure
set(gca(),"grid",[2,5])
end
set(gca(),"auto_clear","on")
//End of Example
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